Hi Jet, Thanks for the reply. I have found the conversion equation on internet (mg/m3 = ppm * Molecular Mass * 0.0409). This equation should be quite common for the conversaion. But we are missing the molecular mass information. So, if we want to use the b-VOC value from BME680, then what molecular Mass should If we use in this equation? Also, for b-VOC range, the range is from 0.5 to 1000ppm. We always detect the value in our office is 0.5ppm and sometime we have the reading is 5ppm. Is it normal? You can see my attached result. About the 0.5 to 1000ppm, is any meaning for this range? For example, 0.5 to 5 mean Low level of TVOC? Just like the TVOC range definition. If I need to sign any NDA to have this information, please let me know and our company willing to sign this. Thanks.
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